Somehow I drifted to the back side of YouTube and happened across this video. The guy made a bar from melting Gold plated connector pins from motherboards and sent it away for analysis. He shows the results he received. Maybe this will help some of the new guys that come here with a box full of these they have bought from ebay.
http://youtu.be/VmKkb_33koQ?t=42s
EDIT:
2.6% Nickel
80%Copper
15.3% Zinc
2% Tin
99.96% NOT GOLD
http://youtu.be/VmKkb_33koQ?t=42s
EDIT:
2.6% Nickel
80%Copper
15.3% Zinc
2% Tin
99.96% NOT GOLD